Exceptional Control Flow The program counter assumes a sequence of values a0,a1,...,an?1 where each ak is the address of some corresponding instru...
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移动开发 时间:
2015-10-03 14:18:57
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291
Given a list, rotate the list to the right by k places, where k is non-negative.For example:Given 1->2->3->4->5->NULL and k = 2,return 4->5->1->2->3->...
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其他好文 时间:
2015-10-03 11:54:35
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152
Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in or...
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其他好文 时间:
2015-10-03 11:54:20
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160
题目:Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in...
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其他好文 时间:
2015-10-02 22:24:15
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147
刚开始学习C语言,准备在做hiho的题目的过程中来学习,在此进行记录,如果代码中有错误或者不当的地方还请指正。时间限制:10000ms单点时限:1000ms内存限制:256MB描述Little Hi gets lost in the city. He does not know where he i...
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其他好文 时间:
2015-10-02 22:21:50
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257
hi , where is the lost time.People always say that if you want to do something well, you must spend 10000 hours on it. Writing code is the same way.I ...
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其他好文 时间:
2015-10-02 19:54:31
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192
数据库情况:--aDB 表A--bDB 表B那么在aDB查询bDB的数据1 select * from bDB.dbo.B也可以轻松写出以下语句1 select UserId from A where UserId in (select UserId from bDB.dbo.B)
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数据库 时间:
2015-10-02 18:43:59
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238
Find the Duplicate NumberGiven an arraynumscontainingn+ 1 integers where each integer is between 1 andn(inclusive), prove that at least one duplicate ...
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编程语言 时间:
2015-10-02 18:39:34
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185
使用buildSql方法$subQuery=$model->field('id,name')->table('tablename')->group('field')->where($where)->order('status')->buildSql();$model->table($subQuery...
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Web程序 时间:
2015-10-02 16:09:36
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144
数据库的优化1).SQL语句优化a应尽量避免在 where 子句中使用!=或操作符,否则将引擎放弃使用索引而进行全表扫描。b应尽量避免在 where 子句中对字段进行 null 值判断,否则将导致引擎放弃使用索引而进行全表扫描,如:select id from t where num is null...
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数据库 时间:
2015-10-02 16:08:50
阅读次数:
242